CN213206345U

CN213206345U - Dustproof bearing

Info

Publication number: CN213206345U
Application number: CN202021864101.0U
Authority: CN
Inventors: 周钞
Original assignee: Shengzhou Wuzhou Xinhua Bearing Forging Co ltd
Current assignee: Shengzhou Wuzhou Xinhua Bearing Forging Co ltd
Priority date: 2020-08-31
Filing date: 2020-08-31
Publication date: 2021-05-14
Anticipated expiration: 2030-08-31

Abstract

The utility model discloses a dustproof bearing relates to bearing production, aims at solving and can not keep off too tiny dust in the outside, and then influences the life's of bearing problem, and its technical scheme main points are: including outer lane and inner circle, the inner circle cover is equipped with interior dust cover and outer dust cover, interior dust cover is towards the one side fixedly connected with clamping ring of outside dust cover, interior dust cover and outer dust cover pass through the clamping ring joint and form the cavity that is used for holding the dust, the dust groove along the embedding is offered to the internal perisporium of outer dust cover in being used for holding, the outer edge of interior dust cover is formed with gapped one with the inner wall in dust groove, the chamfer has been seted up to the lateral wall of outer lane, the outer hypotenuse that forms the laminating chamfer along the outer edge of outer dust cover. The utility model discloses make the dust run through in the vertical cavity that falls into behind clearance two, and then keep off the dust check, prevent that the dust from getting into the bearing in, through setting up clearance one, prevent that the dust in the cavity from getting into the bearing in, further improve the leakproofness of bearing.

Description

Dustproof bearing

Technical Field

The utility model relates to a bearing production, more specifically say, it relates to a dust proof bearing.

Background

The bearing is an important part in the modern mechanical equipment, and the main function of the bearing is to support a mechanical rotating body, reduce the friction coefficient in the movement process of the mechanical rotating body and ensure the rotation precision of the mechanical rotating body.

Current bearing includes outer lane, inner circle and a plurality of ball, sets up between outer lane and inner circle through the even interval of holder annular between the ball, and the ring channel has all been seted up to the one side of outer lane and inner circle orientation each other, in the ball embedding twice ring channel, the outer lane of bearing can be dismantled and be connected with the dust cover, and the turn-up has been seted up along the outer of dust cover, and the recess that is used for holding the turn-up embedding is seted up to the outer lane of bearing.

In order to reduce friction force, a proper gap is formed between the inner edge of the dust cover and the outer diameter of the inner ring, so that excessively fine dust cannot be blocked outside, and the service life of the bearing is further influenced.

Therefore, a new solution is needed to solve this problem.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a dustproof bearing improves the dustproof ability of bearing.

The above technical purpose of the present invention can be achieved by the following technical solutions: the utility model provides a dustproof bearing, includes outer lane and inner circle, the inner circle cover is equipped with interior dust cover and outer dust cover, interior dust cover is towards the one side fixedly connected with clamping ring of outside dust cover, interior dust cover and outer dust cover just form the cavity that is used for holding the dust through the clamping ring joint, the dust groove along the embedding outward of dust cover is offered to the internal perisporium of outer lane, the outer inner wall along with the dust groove of interior dust cover is formed with gappedly one, the chamfer has been seted up to the lateral wall of outer lane, the outer hypotenuse along forming the laminating chamfer of outer dust cover, the outer clearance two that communicates with the cavity that is formed with along the lateral wall with the outer lane of outer dust cover.

Through adopting above-mentioned technical scheme, most dust is blockked outside outer dust cover, the tiny dust of part gets into in the bearing along two clearance, through setting up the hypotenuse, make things convenient for the dust landing on the hypotenuse, reduce piling up of dust on the outer dust cover, and hypotenuse and chamfer form the hem, the length of extension clearance two, and then reduce the dust volume that gets into in the bearing, then the vertical cavity that falls into of dust that runs through clearance two, and then keep off the dust, prevent in the dust gets into the bearing, through setting up clearance one, prevent that the dust in the cavity from getting into in the bearing, further improve the leakproofness of bearing.

The utility model discloses further set up to: the connecting ring has a plurality of archs towards the annular array distribution of the lateral wall of outer dust cover, outer dust cover is offered and is used for holding protruding logical groove of running through.

Through adopting above-mentioned technical scheme, lead to the groove through protruding embedding to improve the joint strength between interior dust cover and the outer dust cover.

The utility model discloses further set up to: the outer edge of the inner dust cover is fixedly connected with an annular elastic part, the elastic part is positioned in the dust-proof groove, and the gap position is positioned between the elastic part and the inner wall of the dust-proof groove.

Through adopting above-mentioned technical scheme, through setting up the elastic component, increase the area in clearance one, and the elastic component is located the dust prevention inslot, plays better check and keeps off the effect.

The utility model discloses further set up to: the outer edge of the elastic part is provided with a plurality of cutting grooves distributed in an annular array.

Through adopting above-mentioned technical scheme, through setting up the grooving for the elastic part changes for easily, and then makes things convenient for interior dust cover's installation.

The utility model discloses further set up to: the longitudinal section of the elastic part is U-shaped.

Through adopting above-mentioned technical scheme, be the U-shaped through setting up the elastic component to make clearance one be the U-shaped, there are two dog-ears and the length that prolongs clearance one, improve the leakproofness of bearing.

The utility model discloses further set up to: the inner edge of the inner dust cover and the inner edge of the outer dust cover are fixedly connected with convex strips, and the inner ring is provided with a plurality of caulking grooves used for accommodating the convex strips.

Through adopting above-mentioned technical scheme, through sand grip embedding caulking groove to fixed interior dust cover and outer dust cover play the effect of blockking to the dust.

To sum up, the utility model discloses following beneficial effect has: most dust is blockked outside outer dust cover, and in the tiny dust of part got into the bearing along clearance two, through setting up the hypotenuse, the length of extension clearance two, and then reduce the dust volume that gets into in the bearing, then the vertical cavity that falls into of dust that runs through clearance two in, and then block the dust, prevent that the dust from getting into in the bearing, through setting up clearance one, prevent that the dust in the cavity from getting into the bearing in, further improve the leakproofness of bearing.

Drawings

Fig. 1 is a cross-sectional view of the present invention;

fig. 2 is an enlarged schematic view of a portion a in fig. 1.

In the figure: 1. an outer ring; 2. an inner ring; 3. an inner dust cover; 4. an outer dust cover; 5. a connecting ring; 6. a cavity; 7. a dust-proof groove; 8. a first gap; 9. a bevel edge; 10. a second gap; 11. a protrusion; 12. a through groove; 13. an elastic portion; 14. grooving; 15. a convex strip; 16. and (4) caulking grooves.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and examples.

Example (b):

as shown in fig. 1, a dustproof bearing, including outer lane 1 and inner circle 2, inner circle 2 covers are equipped with interior dust cover 3 and outer dust cover 4, as shown in fig. 2, the interior perisporium of outer lane 1 is offered and is used for holding the outer dustproof groove 7 along the embedding of interior dust cover 3, the outer edge of interior dust cover 3 forms clearance one 8 with the inner wall of dustproof groove 7, the outer edge of outer dust cover 4 forms two 10 in the clearance that communicates with cavity 6 with the lateral wall of outer lane 1, the chamfer has been seted up to outer lane 1, the outer edge of outer dust cover 4 forms the hypotenuse 9 of laminating chamfer.

As shown in fig. 2, the inner edge of the inner dust cover 3 and the outer dust cover 4 is bonded with a convex strip 15, the inner ring 2 is provided with a plurality of caulking grooves 16 which are annular and are used for accommodating the convex strip 15, the inner dust cover 3 is bonded with a connecting ring 5 towards one side of the outer dust cover 4, the connecting ring 5 is distributed with a plurality of bulges 11 towards the annular array of the side wall of the outer dust cover 4, the outer dust cover 4 is provided with a through groove 12 for accommodating the bulges 11 to run through, and the inner dust cover 3 and the outer dust cover 4 form a cavity 6 for accommodating dust.

As shown in fig. 2, the outer edge of the inner dust cover 3 is bonded with an annular elastic part 13, the longitudinal section of the elastic part 13 is U-shaped, the elastic part 13 is located in the dust-proof groove 7, and the first gap 8 is located between the inner walls of the elastic part 13 and the dust-proof groove 7, so that the first gap 8 is U-shaped and has two break angles, thereby preventing dust from entering the inside of the bearing, the outer edge of the elastic part 13 is distributed with a plurality of cutting grooves 14 in an annular array manner, so that the elastic part 13 is deformed more easily, and further the inner dust cover 3 is convenient to install.

When people install the bearing, the interior edge cover of interior dust cover 3 is on the periphery wall of inner circle 2, sand grip 15 slides on the periphery wall of inner circle 2, simultaneously elastic component 13 takes place to deform, it is inconsistent with the internal perisporium of outer lane 1, when sand grip 15 imbeds caulking groove 16 in, thereby fixed interior dust cover 3, elastic component 13 recovers in dust groove 7 simultaneously, and then make clearance 8 between dust groove 7 inner wall and the elastic component 13 be the U-shaped, the interior edge cover of will outer dust cover 4 is on the periphery wall of inner circle 2 and the protruding 11 on the logical groove 12 alignment connecting ring 5 on the outer dust cover 4, then sand grip 15 on the outer dust cover 4 imbeds caulking groove 16 in, thereby fixed outer dust cover 4 and inner circle 2 and protruding 11 imbeds logical inslot 12, and then realize interior dust cover 3 and the joint of outer dust cover 4.

When using the bearing, through setting up outer dust cover 4, block most dust outside the bearing, the dust of partial small granule gets into in clearance two 10, through setting up hypotenuse 9, make things convenient for the dust landing on the hypotenuse 9, reduce piling up of dust on the outer dust cover 4, and form the hem between hypotenuse 9 and the chamfer, improve the length in clearance two 10, the improvement is to the effect that blocks of dust, fall into in cavity 6 under the effect of self gravity behind the partial dust through clearance two 10, and then keep off the dust, prevent that the dust from getting into in the bearing, because form two 10 in clearance of U-shaped between the inner wall of elastic component 13 and dust groove 7, further prevent that the dust in the cavity 6 from getting into in the bearing, and then improve the life of bearing.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A kind of dust-proof bearing, characterized by: comprises an outer ring (1) and an inner ring (2), wherein the inner ring (2) is sleeved with an inner dust cover (3) and an outer dust cover (4), one surface of the inner dust cover (3) facing the outer dust cover (4) is fixedly connected with a connecting ring (5), the inner dust cover (3) and the outer dust cover (4) are clamped through a connecting ring (5) and form a cavity (6) for containing dust, the inner peripheral wall of the outer ring (1) is provided with a dustproof groove (7) for accommodating the outer edge of the inner dustproof cover (3) to be embedded, a clearance I (8) is formed between the outer edge of the inner dust cover (3) and the inner wall of the dust-proof groove (7), the side wall of the outer ring (1) is provided with a chamfer, the outer edge of the outer dust cover (4) forms a bevel edge (9) jointed with the chamfer, and a second gap (10) communicated with the cavity (6) is formed between the outer edge of the outer dust cover (4) and the side wall of the outer ring (1).

2. A dust bearing according to claim 1, wherein: the connecting ring (5) is provided with a plurality of protrusions (11) towards the annular array of the side wall of the outer dust cover (4), and the outer dust cover (4) is provided with a through groove (12) for accommodating the protrusions (11) to penetrate through.

3. A dust bearing according to claim 1, wherein: the outer edge of the inner dust cover (3) is fixedly connected with an annular elastic part (13), the elastic part (13) is located in the dust-proof groove (7), and the first gap (8) is located between the elastic part (13) and the inner wall of the dust-proof groove (7).

4. A dust bearing according to claim 3, wherein: the outer edge of the elastic part (13) is provided with a plurality of cutting grooves (14) distributed in an annular array.

5. The dust bearing of claim 4, wherein: the longitudinal section of the elastic part (13) is U-shaped.

6. A dust bearing according to claim 1, wherein: interior dust cover (3) and the interior fixedly connected with sand grip (15) of following of outer dust cover (4), a plurality of caulking grooves (16) that are used for holding sand grip (15) are seted up in inner circle (2).